19403920

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4111}}^1$

素因数の和:4183

約数の個数: 40

約数和(自身を含む): 45889920

約数和(自身を除く): 26486000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4111, 4720, 8222, 16444, 20555, 32888, 41110, 65776, 82220, 164440, 242549, 328880, 485098, 970196, 1212745, 1940392, 2425490, 3880784, 4850980, 9701960, 19403920]

約数ペア:

[(1, 19403920), (2, 9701960), (4, 4850980), (5, 3880784), (8, 2425490), (10, 1940392), (16, 1212745), (20, 970196), (40, 485098), (59, 328880), (80, 242549), (118, 164440), (236, 82220), (295, 65776), (472, 41110), (590, 32888), (944, 20555), (1180, 16444), (2360, 8222), (4111, 4720)]